Ask any longtime mountain biker or gravel rider what pedal they clip into and there's a good chance the answer is the same one they were riding fifteen years ago. The Shimano PD-M520 has quietly held its position as the default entry point into the SPD ecosystem, using the same clip-in mechanism found on XT and XTR pedals with lower-grade materials to hit an accessible price. The mechanism is unchanged, the reliability is proven, and the replacement cost is low enough that a worn-out set doesn't hurt.

The pedal body is aluminum with a chromoly steel spindle turning on a sealed cartridge bearing axle. Dual-sided entry means you don't have to flip the pedal or look down before clipping in — step down on either face and the mechanism engages. Spring tension is adjustable at each binding using a small hex key, which lets you dial in easier release for new riders or firmer retention if you're pulling hard through technical terrain.

The M520 ships with SM-SH51 single-release cleats, which release when you rotate your heel outward. If you want multi-release behavior that lets the cleat disengage under upward pull as well, swap in SM-SH56 cleats — both work with the pedal without any other changes. The 17mm stack height keeps the platform close to the axle, and the open binding design sheds mud and debris better than most pedals at this price.... Read More